USA vs BRICS

https://brics2017.org/English/AboutBRICS/BRICS/
https://en.wikipedia.org/wiki/BRICS
https://knoema.com/qhswwkc/us-gdp-growth-forecast-2015-2019-and-up-to-2060-data-and-charts
https://www.theatlantic.com/business/archive/2012/02/the-world-in-2050-when-the-5-largest-economies-are-the-brics-and-us/253160/
http://www.globalfirepower.com/defense-spending-budget.asp
https://en.wikipedia.org/wiki/Modern_equipment_of_the_Brazilian_Army
http://www.navy.mil/submit/display.asp?story_id=100596
http://www.hellotravel.com/stories/top-10-strongest-air-forces-of-world
http://www.secnav.navy.mil/fmc/fmb/Documents/18pres/DON_PB_OVERVIEW.pdf
http://thediplomat.com/2014/04/does-the-us-navy-have-10-or-19-aircraft-carriers/
http://nationalinterest.org/feature/the-5-most-powerful-navies-2030-16723?page=2
http://www.icanw.org/the-facts/nuclear-arsenals/
http://www.huffingtonpost.com/nikolas-kozloff/wikileaks-brazils-militar_b_823124.html